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Article
mTORC1/rpS6 and mTORC2/PKC regulate spermatogenesis through Arp3-mediated actin microfilament organization in Eriocheir sinensis
Mammalian target of rapamycin (mTOR) is a crucial signaling protein regulating a range of cellular events. Numerous studies have reported that the mTOR pathway is related to spermatogenesis in mammals. However...
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Article
Low-cycle fatigue behavior of DZ125 superalloy under prior exposure conditions
Low-cycle fatigue (LCF) behavior of the directionally solidified (DS) nickel-based DZ125 superalloy was studied at elevated temperature (980 °C). Specimens were, respectively, exposed for 0, 2, 25, 50, and 100...
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Article
High-temperature oxidation behavior of DZ125 Ni-based superalloy under tensile stress
The key in antioxidant capacity of aero-engine hot components is the protective oxide scales. Many factors can affect the performance of oxide scales. The effect of tensile stress on high-temperature oxidation...
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Article
mTORC1/C2 regulate spermatogenesis in Eriocheir sinensis via alterations in the actin filament network and cell junctions
Spermatogenesis is a finely regulated process of germ cell proliferation and differentiation that leads to the production of sperm in seminiferous tubules. Although the mammalian target of rapamycin (mTOR) sig...
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Article
Microstructural evolution and restoration of creep property for a damaged K403 alloy after rejuvenation heat treatments
Rejuvenation heat treatments can restore the microstructures and mechanical properties of the degraded turbine blades in gas turbine engines. Herein we analyze the effects of rejuvenation heat treatments on th...
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Article
Low-cycle fatigue behavior of a directionally solidified Ni-based superalloy subjected to gas hot corrosion pre-exposure
The influence of gas high-temperature hot corrosion (HTHC) pre-exposure on low-cycle fatigue (LCF) behavior was characterized for the directionally solidified (DS) Ni-based superalloy DZ125. Fatigue tests were...
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Article
Fatigue behavior of uncoated and MCrAlY-coated DS nickel-based superalloys pre-exposed in hot corrosion condition
The effects of a MCrAlY coating on low-cycle fatigue (LCF) behavior of directionally solidified (DS) nickle-based superalloy DZ125 were investigated. Before the fatigue testings, the specimens were pre-exposed...
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Article
Oxidation-induced damage of an uncoated and coated nickel-based superalloy under simulated gas environment
Turbine blades and vans operated in an aggressive gas environment usually suffer from combined oxidation and cycle loading effects. The surface oxide layer will result in premature failure and lead to a signif...
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Article
Tensile properties and failure analysis of Ti–6Al–4V joints by electron beam welding
The microstructural and mechanical characterization of electron beam welded joints of forged Ti–6Al–4V were investigated. Microhardness tests indicate that the hardness of the fusion zone (FZ) is higher than t...
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Article
Low-cycle fatigue lifetime estimation of Ti–6Al–4V welded joints by a continuum damage mechanics model
The low-cycle fatigue (LCF) behavior of directionally solidified nickel-based superalloy Ti–6Al–4V was studied under bare and electron beam welding conditions at room temperature. Results show that: (1) under ...
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Article
Low cyclic fatigue behavior of electron-beam-welded Ti–6Al–4V titanium joint
The low cycle fatigue (LCF) tests were carried out using symmetrical cyclic loading under total strain amplitude control conditions. The present paper is devoted to investigating the cyclic deformation respon...
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Article
Fatigue crack growth of titanium alloy joints by electron beam welding
Electron beam welding (EBW) has been widely used in the manufacture of titanium alloy welded blisk for aircraft engines. Based on fatigue crack growth tests on titanium alloy electron beam welding (EBW) joints...
